Improvement in ventilators



UNITED STATES PATENT OFFICE.

JOEIN OARRUTHEBS BATES, OF GOLD SPRING, NEW YORK.

IMPROVEMENT IN VENTILATORS.

Specification forming part of Letters Patent No. 156,01 1, dated October20, 1874; application filed July 17, 1874.

To all whom it may concern:

Be it known that I, JOHN C. BATES, of Cold Spring, in the county ofPutnam, State of New York, have invented a certain new and usefulImprovement in Ventilators, of which the following is a descriptionsufficiently full, clear, and exact to enable any person skilled in theart or science to which my invention appertains to make and use thesame, reference being had to the accompanying drawing forming a part ofthis specification, in which Figure 1 is a rear elevation of my improvedventilator; Fig. 2, a front view of the same; and Fig. 3, a verticaltransverse section.

Like letters of reference indicate corresponding parts in the diii'erentfigures of the drawin g.

My invention relates to that class of ventilators which is used inconnection with windows; and consists in a novel construction andarrangement of the parts, as hereinafter more fully set forth andclaimed, by which a neater, cheaper, and more effective device of thischaracter is produced than is now in common use. I

In Fig. 1, A represents the sill-rail of the window-sash B, theventilator-box; O, the protector or open-work plate; D, the wiregauzescreen; and E, the slide.

In applying my ventilator the lower rail of the sash is first preparedby cutting an elongated aperture through the same, slightly smaller thanthe plate 0. Over this aperture, on th e outer side of the rail, isplaced the wiregauze or netting I), and over the netting the open-workplate or protector O, the plate being securely screwed to the sash. Thebox or main case of the ventilator B is attached to the inner side ofthe rail, immediately over the aperture, and has a register openingupwardly. The register is provided with a slide, E, which is inclineddownwardly, at an angle of forty-five degrees, to the face of the rail,being fitted to close the register in the ordinary manner. The case Bhas an indentation or aperture, G, in its lower front section, forming alift for the sash. But it will be obvious that a similar aperture may beplaced at each end of the case or box, or that one or more projectionsmay be substituted for the aperture without departing from the spirit ofmy invention.

In ventilating a room it is important that the air should not beadmitted in adirect current, but should be deflected or turned upwardly,for obvious reasons.

I therefore make use of the deflecting-case B, constructed and arrangedas described, the case having its ends and bottom closed, and beingprovided with an inclined register at its top and with the slide E, asset forth, or {)vith other convenient means of closing said The objectof the gauze Dis to prevent the entrance of insects and dust through theVentilator into the room, the perforated plate 0 serving as a protectorto the gauze. The aperture G takes the place of the ordinary sashlift,and renders the use of an additional lift unnecessary.

I am aware that ventilators have been constructed to deflect the currentof air as it is admitted to the apartment; also, that slides have beenused for closing such ventilators,

and, therefore, do not herein claim the same,

JOHN OARRUTHERS BATES.

Witnesses:

OYRUs E. NELSON, S. B. NELSON.

